Hundreds of thousands of Bay Area commuters remain in limbo today as crews scramble to complete an emergency repair to the workhorse Bay Bridge. The 73-year-old bridge, crossed by more than 260,000 cars and trucks a day, was shut down for a larger, unrelated seismic upgrade project. Now, crews are working to fix a cracked steel link, called an eyebar, that helps hold up the east span. Inspectors discovered the problem Saturday afternoon, setting in motion a dash to fix a problem that - by itself - would have forced officials to shut down the bridge. "There's a lot of...